﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Maticsoft.DBUtility;//Please add references
namespace ly.DAL
{
	/// <summary>
	/// 数据访问类:Comment
	/// </summary>
	public partial class Comment
	{
		public Comment()
		{}
		#region  BasicMethod

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public int GetMaxId()
		{
		return DbHelperSQL.GetMaxID("CommentID", "Comment"); 
		}

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int CommentID)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from Comment");
			strSql.Append(" where CommentID=@CommentID ");
			SqlParameter[] parameters = {
					new SqlParameter("@CommentID", SqlDbType.Int,4)			};
			parameters[0].Value = CommentID;

			return DbHelperSQL.Exists(strSql.ToString(),parameters);
		}


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(ly.Model.Comment model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into Comment(");
			strSql.Append("WorkID,WorkName,UserName,CommentContent,CommentTime)");
			strSql.Append(" values (");
            strSql.Append("@WorkID,@WorkName,@UserName,@CommentContent,@CommentTime)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@WorkID", SqlDbType.Int,4),
					new SqlParameter("@WorkName", SqlDbType.NChar,50),
					new SqlParameter("@UserName", SqlDbType.NChar,50),
					new SqlParameter("@CommentContent", SqlDbType.NVarChar,-1),
					new SqlParameter("@CommentTime", SqlDbType.DateTime)};
            parameters[0].Value = model.WorkID;
			parameters[1].Value = model.WorkName;
			parameters[2].Value = model.UserName;
			parameters[3].Value = model.CommentContent;
			parameters[4].Value = model.CommentTime;

			object obj = DbHelperSQL.GetSingle(strSql.ToString(),parameters);
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 更新一条数据
		/// </summary>
		public bool Update(ly.Model.Comment model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("update Comment set ");
			strSql.Append("WorkName=@WorkName,");
			strSql.Append("UserName=@UserName,");
			strSql.Append("CommentContent=@CommentContent,");
			strSql.Append("CommentTime=@CommentTime");
			strSql.Append(" where WorkID=@WorkID");
			SqlParameter[] parameters = {
					new SqlParameter("@WorkName", SqlDbType.NChar,50),
					new SqlParameter("@UserName", SqlDbType.NChar,50),
					new SqlParameter("@CommentContent", SqlDbType.NVarChar,-1),
					new SqlParameter("@CommentTime", SqlDbType.DateTime),
					new SqlParameter("@CommentID", SqlDbType.Int,4),
					new SqlParameter("@WorkID", SqlDbType.Int,4)};
			parameters[0].Value = model.WorkName;
			parameters[1].Value = model.UserName;
			parameters[2].Value = model.CommentContent;
			parameters[3].Value = model.CommentTime;
			parameters[4].Value = model.CommentID;
			parameters[5].Value = model.WorkID;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		/// <summary>
		/// 删除一条数据
		/// </summary>
		public bool Delete(int WorkID)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from Comment ");
			strSql.Append(" where WorkID=@WorkID");
			SqlParameter[] parameters = {
					new SqlParameter("@WorkID", SqlDbType.Int,4)
			};
			parameters[0].Value = WorkID;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 删除一条数据
		/// </summary>
        //public bool Delete(int CommentID)
        //{
			
        //    StringBuilder strSql=new StringBuilder();
        //    strSql.Append("delete from Comment ");
        //    strSql.Append(" where CommentID=@CommentID ");
        //    SqlParameter[] parameters = {
        //            new SqlParameter("@CommentID", SqlDbType.Int,4)			};
        //    parameters[0].Value = CommentID;

        //    int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
        //    if (rows > 0)
        //    {
        //        return true;
        //    }
        //    else
        //    {
        //        return false;
        //    }
        //}
		/// <summary>
		/// 批量删除数据
		/// </summary>
		public bool DeleteList(string WorkIDlist )
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from Comment ");
			strSql.Append(" where WorkID in ("+WorkIDlist + ")  ");
			int rows=DbHelperSQL.ExecuteSql(strSql.ToString());
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public ly.Model.Comment GetModel(int WorkID)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select  top 1 CommentID,WorkID,WorkName,UserName,CommentContent,CommentTime from Comment ");
			strSql.Append(" where WorkID=@WorkID");
			SqlParameter[] parameters = {
					new SqlParameter("@WorkID", SqlDbType.Int,4)
			};
			parameters[0].Value = WorkID;

			ly.Model.Comment model=new ly.Model.Comment();
			DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters);
			if(ds.Tables[0].Rows.Count>0)
			{
				return DataRowToModel(ds.Tables[0].Rows[0]);
			}
			else
			{
				return null;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public ly.Model.Comment DataRowToModel(DataRow row)
		{
			ly.Model.Comment model=new ly.Model.Comment();
			if (row != null)
			{
				if(row["CommentID"]!=null && row["CommentID"].ToString()!="")
				{
					model.CommentID=int.Parse(row["CommentID"].ToString());
				}
				if(row["WorkID"]!=null && row["WorkID"].ToString()!="")
				{
					model.WorkID=int.Parse(row["WorkID"].ToString());
				}
				if(row["WorkName"]!=null)
				{
					model.WorkName=row["WorkName"].ToString();
				}
				if(row["UserName"]!=null)
				{
					model.UserName=row["UserName"].ToString();
				}
				if(row["CommentContent"]!=null)
				{
					model.CommentContent=row["CommentContent"].ToString();
				}
				if(row["CommentTime"]!=null && row["CommentTime"].ToString()!="")
				{
					model.CommentTime=DateTime.Parse(row["CommentTime"].ToString());
				}
			}
			return model;
		}

		/// <summary>
		/// 获得数据列表
		/// </summary>
		public DataSet GetList(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select CommentID,WorkID,WorkName,UserName,CommentContent,CommentTime ");
			strSql.Append(" FROM Comment ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			return DbHelperSQL.Query(strSql.ToString());
		}
        /// <summary>
        /// 根据ID获得数据列表
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public DataSet GetListByid(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select CommentID,WorkID,WorkName,UserName,CommentContent,CommentTime ");
            strSql.Append(" FROM Comment ");
            //strSql.Append("where WorkID =");
            if (id!=null)
            {
                strSql.Append(" where WorkID = " + id);
            }
            return DbHelperSQL.Query(strSql.ToString());
        }


		/// <summary>
		/// 获得前几行数据
		/// </summary>
		public DataSet GetList(int Top,string strWhere,string filedOrder)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select ");
			if(Top>0)
			{
				strSql.Append(" top "+Top.ToString());
			}
			strSql.Append(" CommentID,WorkID,WorkName,UserName,CommentContent,CommentTime ");
			strSql.Append(" FROM Comment ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			strSql.Append(" order by " + filedOrder);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获取记录总数
		/// </summary>
		public int GetRecordCount(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) FROM Comment ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			object obj = DbHelperSQL.GetSingle(strSql.ToString());
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("SELECT * FROM ( ");
			strSql.Append(" SELECT ROW_NUMBER() OVER (");
			if (!string.IsNullOrEmpty(orderby.Trim()))
			{
				strSql.Append("order by T." + orderby );
			}
			else
			{
				strSql.Append("order by T.WorkID desc");
			}
			strSql.Append(")AS Row, T.*  from Comment T ");
			if (!string.IsNullOrEmpty(strWhere.Trim()))
			{
				strSql.Append(" WHERE " + strWhere);
			}
			strSql.Append(" ) TT");
			strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			SqlParameter[] parameters = {
					new SqlParameter("@tblName", SqlDbType.VarChar, 255),
					new SqlParameter("@fldName", SqlDbType.VarChar, 255),
					new SqlParameter("@PageSize", SqlDbType.Int),
					new SqlParameter("@PageIndex", SqlDbType.Int),
					new SqlParameter("@IsReCount", SqlDbType.Bit),
					new SqlParameter("@OrderType", SqlDbType.Bit),
					new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
					};
			parameters[0].Value = "Comment";
			parameters[1].Value = "WorkID";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

		#endregion  BasicMethod
		#region  ExtensionMethod

		#endregion  ExtensionMethod
	}
}

